Short Description:

Details

Contains

Lead

May React With

Selenium, Sulfur

Cold Characteristics

Appears as a dark transparent. May appear to be blue in color.

Working Notes

Color usually deepens on firing. Possible dark interface reaction with selenium and/or sulfur glasses. Less viscous (softer) than most other glasses. Some gold-bearing striking glasses, like this one, should be fired with a 2 hour hold at 1225°F during the initial stages of the firing cycle. If fired without this hold, they may not strike at all, or they may strike but appear spotty and have a blue-brown cast, as opposed to the desired target color. This full-fuse schedule effectively strikes these glasses:

Rate

Temp

Hold

*

1225

2:00

600

1490

:10

9999

900

**

* The initial rate of heat is not a critical factor in successfully striking gold-bearing glasses. Choose an initial rate of heat appropriate to the scale and design of the project that you are firing.

** Remainder of cycle depends on the thickness of the piece. For color-sensitive projects, we recommend testing the cycle you plan to use by fusing a small sample of a similar setup in the same kiln as the project to best predict final color results.